Finding the Fourth Proportional to 126,007.30, 173,888.13 and 69,420.70
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Solution
The fourth proportional to 126,007.30, 173,888.13 and 69,420.70 is: 95,799.49
Step by Step Solution
- Step 1: Write the proportion equation
126,007.30 : 173,888.13 = 69,420.70 : x - Step 2: Convert to fraction form
126,007.30/173,888.13 = 69,420.70/x - Step 3: Cross multiply
126,007.30x = 173,888.13 × 69,420.70 - Step 4: Simplify right side
126,007.30x = 12,071,435,706.29 - Step 5: Solve for x
x = 12,071,435,706.29/126,007.30 - Step 6: Final answer
x = 95,799.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.